Title :
Reducing measurement errors and measurement uncertainty in PQ. A case study
Author :
Stanciu, Niculai ; Stanescu, Dorel ; Dobre, Ion ; Postolache, Petre
Author_Institution :
“Transilvania Sud” Electr. Distrib. Soc., Brasov, Romania
Abstract :
Power Quality assessment is based on measuring and monitoring of specific parameters. Measure uncertainty level is important because parameters values are estimated based on this information and then compared with admissible limits. More, the decisions and solutions for electromagnetic pollution limitation is also based on that results. ISO/IEC 61000-4-30:2008 Standard contains uncertainty levels for each parameter evaluation depending of equipment class. The paper addresses the issue of reducing of the informational entropy from the measurement process, in order to obtain adequate results for the PQ determinations. As a significant example, we present an experiment to determine the dip residual voltage end maximum swell voltage magnitude in distribution at low voltage.
Keywords :
IEC standards; ISO standards; measurement errors; measurement uncertainty; power supply quality; power system measurement; voltage measurement; ISO/IEC 61000-4-30:2008 standard; PQ; dip residual voltage; electromagnetic pollution; informational entropy; maximum swell voltage; measurement error; measurement uncertainty; power quality assessment; Accuracy; Measurement uncertainty; Pollution measurement; Power measurement; Uncertainty; Voltage fluctuations; Voltage measurement; calibration; maximum swell voltage; measurement errors; measurement uncertainty; the dip residual voltage of the sags;
Conference_Titel :
Harmonics and Quality of Power (ICHQP), 2014 IEEE 16th International Conference on
Conference_Location :
Bucharest
DOI :
10.1109/ICHQP.2014.6842773